Cesium carbonate → Ethyl 3-(5-{5-[4-phenyl-5-(trifluoromethyl)-2-thienyl]-1,2,4-oxadiazol-3-yl}-1H-indol-1-yl)propanoate

HRID 423290ノート

反応式

HRID 423290 の反応式
[C:1]1([C:7]2[CH:8]=[C:9]([C:16]3[O:20][N:19]=[C:18]([C:21]4[CH:22]=[C:23]5[C:27](=[CH:28][CH:29]=4)[NH:26][CH:25]=[CH:24]5)[N:17]=3)[S:10][C:11]=2[C:12]([F:15])([F:14])[F:13])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.Br[CH2:31][CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34].C(=O)([O-])[O-].[Cs+].[Cs+]>CN(C=O)C>[C:1]1([C:7]2[CH:8]=[C:9]([C:16]3[O:20][N:19]=[C:18]([C:21]4[CH:22]=[C:23]5[C:27](=[CH:28][CH:29]=4)[N:26]([CH2:31][CH2:32][C:33]([O:35][CH2:36][CH3:37])=[O:34])[CH:25]=[CH:24]5)[N:17]=3)[S:10][C:11]=2[C:12]([F:15])([F:14])[F:13])[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1

参加物

5

反応物 3

HCID 10796Cesium carbonateHCID 68320Ethyl 3-bromopropionate2 回HCID 251103463-(1H-indol-5-yl)-5-(4-phenyl-5-(trifluoromethyl)thiophen-2-yl)-1,2,4-oxadiazole

生成物 1

HCID 59318376Ethyl 3-(5-{5-[4-phenyl-5-(trifluoromethyl)-2-thienyl]-1,2,4-oxadiazol-3-yl}-1H-indol-1-yl)propanoate

試薬・触媒・溶媒 1

HCID 6228Dimethylformamide溶媒

実験手順

5-{5-[4-phenyl-5-(trifluoromethyl)-2-thienyl]-1,2,4-oxadiazol-3-yl}-1H-indole (D2) (600 mg), ethyl 3-bromopropanoate (374 μl), caesium carbonate (950 mg) and DMF were heated at 140° C. for 1 hour in a microwave reactor. A further 1 eq. of ethyl 3-bromopropanoate (187 μl) was added and the mixture heated for 30 minutes. The reaction mixture was then evaporated, dissolved in DCM and filtered to give the title compound (650 mg) as a brown solid. δH (CDCl3, 400 MHz): 1.21 (3H, t), 2.85 (2H, t), 4.13 (2H, q), 4.50 (2H, t), 6.61 (1H, d), 7.22 (1H, d), 7.44-7.52 (6H, m), 7.89-7.92 (1H, m), 7.98-8.02 (1H, m), 8.45-8.46 (1H, m). MS (ES): C26H20F3N3O3S requires 511; found 512 (MH+).

後処理

  1. temperaturethe mixture heated for 30 minutes
  2. customThe reaction mixture was then evaporated
  3. dissolutiondissolved in DCM
  4. filtrationfiltered

出典と根拠

ORDレコード
ord-4beb20aadc904da2ba6dde9e5d07d5ea
出典データセット
uspto-grants-2012_01
特許番号
US08101775B2

反応ノート

読み込み中…